I am running my vim-8.1.1 compiled in my debian stretch system. The vim process slowly eats up to 40% of my system memory in about 4-5hours. No big files opened. ~4 tabs opened (each with 2 split panes). I am having hard time troubleshooting. Could someone shed some light?

Configure options:

./configure --prefix=/opt/VIM/ --disable-darwin --enable-python3interp=yes --with-vim-name=vem --with-modified-by=XXX --with-compiledby=xxx --with-python3-command

Enables options:

~~> vem --version
VIM - Vi IMproved 8.1 (2018 May 18, compiled Sep 21 2018 16:51:39)
Included patches: 1
Modified by XXX
Compiled by xxx
Huge version without GUI.  Features included (+) or not (-):
+acl               +farsi             +mouse_sgr         -tag_any_white
+arabic            +file_in_path      -mouse_sysmouse    -tcl
+autocmd           +find_in_path      +mouse_urxvt       +termguicolors
-autoservername    +float             +mouse_xterm       +terminal
-balloon_eval      +folding           +multi_byte        +terminfo
+balloon_eval_term -footer            +multi_lang        +termresponse
-browse            +fork()            -mzscheme          +textobjects
++builtin_terms    +gettext           +netbeans_intg     +timers
+byte_offset       -hangul_input      +num64             +title
+channel           +iconv             +packages          -toolbar
+cindent           +insert_expand     +path_extra        +user_commands
-clientserver      +job               -perl              +vertsplit
-clipboard         +jumplist          +persistent_undo   +virtualedit
+cmdline_compl     +keymap            +postscript        +visual
+cmdline_hist      +lambda            +printer           +visualextra
+cmdline_info      +langmap           +profile           +viminfo
+comments          +libcall           -python            +vreplace
+conceal           +linebreak         +python3           +wildignore
+cryptv            +lispindent        +quickfix          +wildmenu
+cscope            +listcmds          +reltime           +windows
+cursorbind        +localmap          +rightleft         +writebackup
+cursorshape       -lua               -ruby              -X11
+dialog_con        +menu              +scrollbind        -xfontset
+diff              +mksession         +signs             -xim
+digraphs          +modify_fname      +smartindent       -xpm
-dnd               +mouse             +startuptime       -xsmp
-ebcdic            -mouseshape        +statusline        -xterm_clipboard
+emacs_tags        +mouse_dec         -sun_workshop      -xterm_save
+eval              -mouse_gpm         +syntax            
+ex_extra          -mouse_jsbterm     +tag_binary        
+extra_search      +mouse_netterm     +tag_old_static    
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/opt/VIM/share/vim"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H     -g -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1       
Linking: gcc   -L/usr/local/lib -Wl,--as-needed -o vem        -lm -ltinfo -lnsl   -ldl     -L/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu -lpython3.5m -lpthread -ldl -lutil -lm 
  • 4
    might depend on plugins. So are you using any? Try first with vim --clean and also see the faq: vimhelp.appspot.com/vim_faq.txt.html#faq-2.5 – Christian Brabandt Sep 21 '18 at 12:15
  • yes. I do. I have quite a few. onedark, javascript, rust, python and linters along with syntax highlighters. Oh my, I should now try finding by uninstall/install, shouldn't I? – Bussller Sep 21 '18 at 14:44
  • Very likely that a plugin (linter or other external process) is the root cause; yes, try and debug w/&w/o plugins – D. Ben Knoble Sep 21 '18 at 16:24
  • wondering, is there any stacktrace methods from vim side to track the plugin utilization? I could see couple of python processes running (probably YCM) besides that my suspicion is on the theme (palenight). The issue has started only after installing palenight. How likely is that possible? – Bussller Sep 22 '18 at 6:40

Following up with the suggestions from Christian, I have found the plugin that causes this issue. It is YouCompleteMe Plugin that creates a new log file after 30 minutes of inactivity in any of vim instance.

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